PyPro #17 Sum a List of Numbers with Exception Handling

Sum a List of Numbers with Exception Handling in Python: A simple Python program of adding 3 given numbers, handling exception in case user inputs anything other than digits.

Sum a List of Numbers with Exception Handling in Python

# Sum of 3 numbers
# A simple program of adding 3 given numbers, handling exception in case user inputs anything other than digits.

# asking for inputs
try:
    numberOne = float(input("Please enter the first number: "))
    numberTwo = float(input("Please enter the second number: "))
    numberThree = float(input("Please enter the third number: "))
except ValueError:
    print("That was not a number!")

# displaying total
try:
    print("Total: ", str(numberOne + numberTwo + numberThree))
except NameError:
    print("Cannot compute sum. Please execute the program again.")

See also:

• Python 101
• Object Oriented Python
• Design Patterns in Python
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• 60+ Handy Third Library Modules
• 50+ Tips & Tricks for Python Developers
• 50+ Know-How(s) Every Pythonista Must Know